What performance counters can be tracked using thresholds
Some common performance counters, such as IOPS and MB/s, can have thresholds set for all storage objects. There are other counters that can have thresholds set for only certain storage objects.
Available performance counters
| Storage object | Performance counter | Description |
|---|---|---|
| Cluster | IOPS | Average number of input/output operations the cluster processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this cluster per second. | |
| Node | IOPS | Average number of input/output operations the node processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this node per second. | |
| Latency | Average number of milliseconds the node takes to respond to application requests. | |
| Utilization | Average percentage of the node's CPU and RAM that is being used. | |
| Performance Capacity Used | Average percentage of performance capacity that is being consumed by the node. | |
| Performance Capacity Used - Takeover | Average percentage of performance capacity that is being consumed by the node, plus the performance capacity of its partner node. | |
| Aggregate | IOPS | Average number of input/output operations the aggregate processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this aggregate per second. | |
| Latency | Average number of milliseconds the aggregate takes to respond to application requests. | |
| Utilization | Average percentage of the aggregate's disks that are being used. | |
| Performance Capacity Used | Average percentage of performance capacity that is being consumed by the aggregate. | |
| Storage Virtual Machine (SVM) | IOPS | Average number of input/output operations the SVM processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this SVM per second. | |
| Latency | Average number of milliseconds the SVM takes to respond to application requests. | |
| Volume | IOPS | Average number of input/output operations the volume processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this volume per second. | |
| Latency | Average number of milliseconds the volume takes to respond to application requests. | |
| Cache miss ratio | Average percentage of read requests from client applications that are returned from the volume instead of being returned from cache. | |
| LUN | IOPS | Average number of input/output operations the LUN processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this LUN per second. | |
| Latency | Average number of milliseconds the LUN takes to respond to application requests. | |
| Namespace | IOPS | Average number of input/output operations the namespace processes per second. |
| MB/s | Average number of megabytes of data transferred to and from this namespace per second. | |
| Latency | Average number of milliseconds the namespace takes to respond to application requests. | |
| Port | Bandwidth utilization | Average percentage of the port's available bandwidth that is being used. |
| MB/s | Average number of megabytes of data transferred to and from this port per second. | |
| Network Interface (LIF) | MB/s | Average number of megabytes of data transferred to and from this LIF per second. |
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